Textures from DAZ not rendering in Maya?

The character models consist of several surfaces / polygongroups (e.g. for torso, face, arms, legs etc.) you will have to assign the textures too (have a look at the "surfaces" - tab in DAZStudio).
Can't tell you how to do that in Maya though since I don't use it.

Sorry forgot you could try to export it as obj file in DAZ with the option "Write Material library" (tick the box). Under it choose "Original Maps". Then at least the textures work right away. Normal maps and other maps must be assigned though.

The normal map issue is a limitation of the OBJ file format. Depending on how the export app deals with normal maps, they will either be ignored or interpreted as a bump map. Since most software uses a unique node or material parameter for normal maps vs. standard bump maps, they will not import correctly.